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Android Build a Simple Android App (retired 2014) Getting Started with Android Accessing Views in Code

Brian Jones
Brian Jones
715 Points
Posted by Brian Jones
Brian Jones
715 Points

Ok team need some help

I am lost, How is this done? Initialize the getAnswerButton variable using the findViewById() method like the TextView above it. The ID for the button is 'button1', and don't forget to cast it to a Button with '(Button)'!

2 Answers

Derek Etnyre
Derek Etnyre
20,822 Points
Derek Etnyre
Derek Etnyre
20,822 Points

// what you need to do is find the button id and assign it to the AnswerButton variable. Thats what it means to initialize. For example:

Button AnswerButton = (Button) findViewById(R.id.button1);

Brian Jones
Brian Jones
715 Points
Brian Jones
Brian Jones
715 Points

Thanks Derek, I appreciate that it

Cristian Rivera
Cristian Rivera
2,192 Points
Cristian Rivera
Cristian Rivera
2,192 Points

Para inicializar cualquier View en Android siempre se tiene que seguir esta linea de código y "castear" dependiendo de el tipo de View, te dejo unos ejemplos.

TextView mTextView = (TextView) findByViewId(R.id.my_textview_id);
Button mButton = (Button) findByViewId(R.id.my_button_id);
ImageView mImageView = (ImageView) findByViewId(R.id.my_imageview_id);

Y así respectivamente.